Finding the Fourth Proportional to 1,542,749.60, 2,128,740.96 and 969,383.68
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Solution
The fourth proportional to 1,542,749.60, 2,128,740.96 and 969,383.68 is: 1,337,590.20
Step by Step Solution
- Step 1: Write the proportion equation
1,542,749.60 : 2,128,740.96 = 969,383.68 : x - Step 2: Convert to fraction form
1,542,749.60/2,128,740.96 = 969,383.68/x - Step 3: Cross multiply
1,542,749.60x = 2,128,740.96 × 969,383.68 - Step 4: Simplify right side
1,542,749.60x = 2,063,566,745,571.53 - Step 5: Solve for x
x = 2,063,566,745,571.53/1,542,749.60 - Step 6: Final answer
x = 1,337,590.20
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.